DROP OPERATOR CLASS(7)                                    SQL Commands                                    DROP OPERATOR CLASS(7)



NAME
       DROP OPERATOR CLASS - remove an operator class


SYNOPSIS
       DROP OPERATOR CLASS [ IF EXISTS ] name USING index_method [ CASCADE | RESTRICT ]


DESCRIPTION
       DROP  OPERATOR  CLASS  drops  an  existing operator class.  To execute this command you must be the owner of the operator
       class.

       DROP OPERATOR CLASS does not drop any of the operators or functions referenced by the class. If  there  are  any  indexes
       depending on the operator class, you will need to specify CASCADE for the drop to complete.

PARAMETERS
       IF EXISTS
              Do not throw an error if the operator class does not exist. A notice is issued in this case.

       name   The name (optionally schema-qualified) of an existing operator class.

       index_method
              The name of the index access method the operator class is for.

       CASCADE
              Automatically drop objects that depend on the operator class.

       RESTRICT
              Refuse to drop the operator class if any objects depend on it.  This is the default.

NOTES
       DROP  OPERATOR  CLASS  will  not drop the operator family containing the class, even if there is nothing else left in the
       family (in particular, in the case where the family was implicitly created by CREATE OPERATOR CLASS). An  empty  operator
       family  is  harmless, but for the sake of tidiness you might wish to remove the family with DROP OPERATOR FAMILY; or per-
       haps better, use DROP OPERATOR FAMILY in the first place.

EXAMPLES
       Remove the B-tree operator class widget_ops:

       DROP OPERATOR CLASS widget_ops USING btree;

       This command will not succeed if there are any existing indexes that use the operator class. Add  CASCADE  to  drop  such
       indexes along with the operator class.

COMPATIBILITY
       There is no DROP OPERATOR CLASS statement in the SQL standard.

SEE ALSO
       ALTER  OPERATOR  CLASS  [alter_operator_class(7)], CREATE OPERATOR CLASS [create_operator_class(7)], DROP OPERATOR FAMILY
       [drop_operator_family(7)]



SQL - Language Statements                                  2011-09-22                                     DROP OPERATOR CLASS(7)